“President Assad has met the state-of-the-art and most important aircraft in the world, the Russian Su-35, located at the Khmeymim airbase,” reads one of the posts, showing the Syrian leader climbing inside the cockpit of a fighter jet.

Earlier this year, the two countries signed an agreement, allowing Russia to use the Khmeymim airdrome, as well as the naval port at Tartus, for 49 years, with the lease getting automatically prolonged for another 25 years.